36549091 has 4 divisors (see below), whose sum is σ = 36563400. Its totient is φ = 36534784.

The previous prime is 36549089. The next prime is 36549101. The reversal of 36549091 is 19094563.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19094563 = 19 ⋅1004977.

It is a cyclic number.

It is not a de Polignac number, because 36549091 - 2¹ = 36549089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36549091.

It is not an unprimeable number, because it can be changed into a prime (36549061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2161 + ... + 8818.

It is an arithmetic number, because the mean of its divisors is an integer number (9140850).

Almost surely, 2^36549091 is an apocalyptic number.

36549091 is a deficient number, since it is larger than the sum of its proper divisors (14309).

36549091 is a wasteful number, since it uses less digits than its factorization.

36549091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14308.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 36549091 is about 6045.5844217081. The cubic root of 36549091 is about 331.8630192877.

The spelling of 36549091 in words is "thirty-six million, five hundred forty-nine thousand, ninety-one".